Palladium catalyzed c-allylation of highly acidic carbo and heterocyclic β-dicarbonyl compounds
作者:M. Prat、M. Moreno-Mañas、J. Ribas
DOI:10.1016/s0040-4020(01)86091-9
日期:1988.1
Highly acidic carbo and heterocyclic β-dicarbonyl compounds such as barbituric acid, 3,5-dimethyl-2-1,2,6-thiadiazine 1,1-dioxide, cyclohexane-1,3-dione, tetronicacids, Meldrum acid and 1,2-diphenylpyrazolidine-3,5-dione are efficiently C-allylated with primary and secondary allylating agents under palladium catalysis.
Direct palladium/carboxylic acid-catalyzed C-allylation of cyclic 1,3-diones with allylic alcohols in water
作者:Kim-Hong Gan、Ciou-Jyu Jhong、Shyh-Chyun Yang
DOI:10.1016/j.tet.2007.11.082
日期:2008.2
The direct activation of C-O bonds in allylic alcohols in water as a suspension medium by palladium complexes has been accelerated by carrying out the reactions in the presence of a carboxylic acid. The palladium-catalyzed allylation of cyclic 1,3-diones using allylic alcohols directly gave the corresponding C-allylated products in good yields. (c) 2007 Elsevier Ltd. All rights reserved.